Medium severity · published Jun 19, 2026
CVE-2026-47341
Apache APISIX: Session replay issue in hmac-auth
6.5
CVSS
0.7%
EPSS
No
On KEV
Description
Authentication Bypass by Capture-replay vulnerability in Apache APISIX.
Attacker can benefit from certain configurations in hmac-auth to re-use a token forever, bypassing expiry.
This issue affects Apache APISIX: from 3.11.0 through 3.16.0.
Users are recommended to upgrade to version 3.17.0, which fixes the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Apache APISIX · Apache Software Foundation
3.11.0 through 3.16.0 · source: vendor
AP
Apisix · Apache
3.11.0 before 3.17.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47341
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47341
Vendor Advisory
https://lists.apache.org/thread/ob6ng9x2hxtyfojs839hs1n0v18xxzf2
Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/06/19/10
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